I present to the Section an ophthalmoscope case made for me by Meyrowitz Bros, in 1886, and which I have had in constant use ever since. It is made like a spectacle case, the open end being closed with a tightly fitting lid, or like a flattened pencil case such as is used by school-children. It is made of stiff pasteboard, or other light material, covered with morocco.
It presents the following advantages over the form in ordinary use:
1. Size. This is such that it can be carried in the vest pocket. The thickness is about half that of the wooden case.
2. Weight. Being smaller and made of lighter material, it is not as heavy as the ordinary form.
3. Shape. There are no corners and the edges are rounded off.
4. As a result of the shape we have another advantage: It is dust-proof. The lenses are